CN114231070A - Flame-retardant heat-preservation nano thick paste coating and coating method thereof - Google Patents
Flame-retardant heat-preservation nano thick paste coating and coating method thereof Download PDFInfo
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- CN114231070A CN114231070A CN202111656421.6A CN202111656421A CN114231070A CN 114231070 A CN114231070 A CN 114231070A CN 202111656421 A CN202111656421 A CN 202111656421A CN 114231070 A CN114231070 A CN 114231070A
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- 238000000576 coating method Methods 0.000 title claims abstract description 248
- 239000003063 flame retardant Substances 0.000 title claims abstract description 233
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 230
- 239000011248 coating agent Substances 0.000 title claims abstract description 228
- 238000004321 preservation Methods 0.000 title claims abstract description 189
- 239000000843 powder Substances 0.000 claims abstract description 139
- 239000002344 surface layer Substances 0.000 claims abstract description 80
- 239000010410 layer Substances 0.000 claims abstract description 71
- 239000000853 adhesive Substances 0.000 claims abstract description 61
- 230000001070 adhesive effect Effects 0.000 claims abstract description 61
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 239000004964 aerogel Substances 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 19
- 229910052909 inorganic silicate Inorganic materials 0.000 claims abstract description 18
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 17
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011575 calcium Substances 0.000 claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims description 114
- 239000011858 nanopowder Substances 0.000 claims description 69
- 238000003756 stirring Methods 0.000 claims description 65
- 235000011837 pasties Nutrition 0.000 claims description 43
- 241001474374 Blennius Species 0.000 claims description 37
- 239000002245 particle Substances 0.000 claims description 29
- 239000002103 nanocoating Substances 0.000 claims description 27
- 239000000839 emulsion Substances 0.000 claims description 25
- 239000010451 perlite Substances 0.000 claims description 14
- 235000019362 perlite Nutrition 0.000 claims description 14
- 238000007605 air drying Methods 0.000 claims description 12
- 239000010456 wollastonite Substances 0.000 claims description 12
- 229910052882 wollastonite Inorganic materials 0.000 claims description 12
- 239000013521 mastic Substances 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000010455 vermiculite Substances 0.000 claims description 8
- 229910052902 vermiculite Inorganic materials 0.000 claims description 8
- 235000019354 vermiculite Nutrition 0.000 claims description 8
- 241000541656 Carex marina Species 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003522 acrylic cement Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 abstract description 5
- 239000005909 Kieselgur Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 30
- 239000002023 wood Substances 0.000 description 28
- 239000007787 solid Substances 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 13
- 244000137852 Petrea volubilis Species 0.000 description 10
- 238000007581 slurry coating method Methods 0.000 description 8
- 238000007664 blowing Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 239000012942 water-based acrylic adhesive Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Building Environments (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a flame-retardant heat-preservation nano thick paste coating, which comprises an inner layer coating and a surface layer coating; the inner layer coating comprises inner layer powder, an adhesive and a regulator, wherein the inner layer powder comprises aerogel mud, an expandable inorganic silicate powder material, diatomite, inorganic fibers or/and organic fibers; the surface layer coating comprises surface layer powder, an adhesive and a regulator, wherein the surface layer powder comprises calcium powder, diatomite and sericite powder. Aerogel mud and diatomaceous earth act as the fire-retardant layer efficiency of heat preservation in work piece or the outer coating of wall, in the environment of catching fire, aerogel, diatomaceous earth parcel are on the expanded ceramic powder top layer of end, fire-retardant isolation to big fire earlier, along with the temperature rise, heat conduction, ceramic powder preheats until popped, and the fibre makes the inflation coating keep intact not ftracture, makes the coating play high temperature resistant effect, fire-retardant effect. Therefore, the nano thick paste coating has very good flame retardant and heat insulation properties. The coating method is simple, the construction controllability is strong, and the use is convenient.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a flame-retardant heat-preservation nano thick paste coating and a coating method thereof.
Background
The heat insulating building paint has outer protecting structure to reduce indoor heat of building and maintain indoor temperature. The coatings in the years are very diversified in function, and have the advantages of heat preservation, heat insulation, scratch resistance, corrosion resistance, flame retardance and the like; besides suspended ceilings, the suspended ceiling is also widely applied to the fields of building walls, wood and the like.
The flame-retardant heat-insulation coating is favored by people due to good heat-insulation performance, the flame retardant is generally added into the basic coating in the existing flame-retardant heat insulation, the flame-retardant effect is not ideal, and the flame-retardant heat-insulation coating does not have a substantial flame-retardant effect in case of fire.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the technical problems in the prior scheme, the invention provides a flame-retardant heat-preservation nano thick paste coating and a coating method thereof.
The technical scheme adopted by the invention is as follows:
a flame-retardant heat-preservation nano thick paste coating comprises an inner layer flame-retardant heat-preservation nano coating and a surface layer flame-retardant heat-preservation nano coating; the lining flame-retardant heat-insulation nano coating comprises lining flame-retardant heat-insulation nano powder, an adhesive and a regulator, wherein the lining flame-retardant heat-insulation nano powder comprises the following components in percentage by weight: 5-30% of aerogel mud, 50-70% of expandable inorganic silicate powder material, 6-30% of diatomite and 3-8% of inorganic fiber or/and organic fiber; the surface layer flame-retardant heat-preservation nano coating comprises surface layer flame-retardant heat-preservation nano powder, an adhesive and a regulator, wherein the surface layer flame-retardant heat-preservation nano powder comprises 60-85% of calcium powder, 10-30% of diatomite and 5-15% of sericite powder.
Further, the adhesive is an aqueous acrylic adhesive; the input proportion of the adhesive is that the volume ratio of the adhesive to the inner layer flame-retardant heat-preservation nano powder or the surface layer flame-retardant heat-preservation nano powder is 1: 5.
further, the regulator is seaweed powder emulsion, and the seaweed powder emulsion is seaweed powder emulsion obtained by mixing seaweed powder and water according to the volume ratio of 1: 150.
Furthermore, the particle size of the aerogel mud is 40-50 mm, and the pore diameter is 30-50 nm.
Further, the expandable inorganic silicate powder material is an inorganic silicate powder material with volume expansion after preheating or high-temperature heating; the expandable inorganic silicate powder material is perlite raw ore powder or/and raw vermiculite powder; the perlite raw ore powder is unexpanded perlite raw ore powder of 80-120 meshes; the particle size of the raw vermiculite powder is 300 meshes.
Further, the inorganic fibers are milled glass fibers or needle-shaped wollastonite, and the length of the milled glass fibers is 80-100 microns; the particle size of the needle-shaped wollastonite is 200 meshes; the organic fiber is polypropylene short fiber.
Further, the particle size of the sericite powder is 800 meshes.
A coating method of a flame-retardant heat-preservation nano thick paste coating comprises the following steps: (a) putting the inner layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the sea sedge powder solution, and continuously uniformly stirring to obtain a paste-shaped inner layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the pasty inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of a workpiece or a wall surface to be coated, and then drying; (c) and (c) repeating the step (b) at least once on the surface of the workpiece or the wall surface obtained after the drying treatment in the step (b): uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to the proportion and uniformly stirring to form pasty surface layer flame-retardant heat-preservation nano thick paste coating/; and (e) coating the pasty surface flame-retardant heat-preservation nano thick paste coating obtained by stirring in the step d on the surface of the workpiece or the wall surface obtained after drying treatment in the step c, further drying treatment, and finishing coating of the flame-retardant heat-preservation nano thick paste coating after drying treatment.
Further, according to the coating method of the flame-retardant heat-preservation nano thick paste coating, the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm.
Further, the drying treatment is natural air drying or drying, and the drying temperature is 40-80 ℃.
The invention has the beneficial effects that: the flame-retardant heat-preservation nano-thick paste coating provided by the invention comprises an inner layer flame-retardant heat-preservation nano-coating and a surface layer flame-retardant heat-preservation nano-coating, wherein the flame-retardant heat-preservation nano-coating powder comprises aerogel mud, an expandable inorganic silicate powder material, sericite powder, diatomite and inorganic fibers or/and organic fibers, the aerogel mud and the diatomite have the effects of serving as a heat-preservation flame-retardant layer in a coating outside a workpiece or a wall surface, in the fire catching environment, aerogel and diatomite are wrapped on the surface layer of the ceramic powder which is not expanded, the fire is firstly prevented from being flaming and isolated, the heat conduction perlite is heated and preheated along with the temperature rise until the ceramic powder is expanded, the expansion coating is kept complete by the inorganic fiber or/and the organic fiber, the surface of the coating plays a high temperature resistant role, the workpiece or the wall surface is prevented from being burnt outside in a short time, and the needle-shaped wollastonite is the mineral fiber, so that the coating layer can be further protected from cracking. The aerogel and the diatomite have a nano microporous structure, and can play a very good role in heat preservation by being matched with the ceramic powder which is not expanded; therefore, the flame-retardant heat-insulation nano thick paste coating has very good flame-retardant and heat-insulation properties. The coating method is simple, is suitable for wall surfaces of walls, various woods and various workpieces to be coated with flame retardant and heat preservation, and has strong construction controllability and convenient use.
Detailed Description
The invention will be further illustrated by the following specific examples, which are given for illustrative purposes only and are not intended to be limiting;
example 1
A flame-retardant heat-preservation nano thick paste coating comprises an inner layer flame-retardant heat-preservation nano coating and a surface layer flame-retardant heat-preservation nano coating; the lining flame-retardant heat-insulation nano coating comprises lining flame-retardant heat-insulation nano powder, an adhesive and a regulator, wherein the lining flame-retardant heat-insulation nano powder comprises the following components in percentage by weight: 17% of aerogel mud, 60% of expandable inorganic silicate powder material, 10% of diatomite and 3% of inorganic fiber; the surface layer flame-retardant heat-preservation nano coating comprises surface layer flame-retardant heat-preservation nano powder, an adhesive and a regulator, wherein the surface layer flame-retardant heat-preservation nano powder comprises 70% of calcium powder, 20% of diatomite and 10% of sericite powder. The adhesive is an aqueous acrylic adhesive; the input proportion of the adhesive is that the volume ratio of the adhesive to the inner layer flame-retardant heat-preservation nano powder or the surface layer flame-retardant heat-preservation nano powder is 1: 5. the conditioner is seaweed powder emulsion, and the seaweed powder emulsion is seaweed powder emulsion obtained by mixing seaweed powder and water according to the volume ratio of 1: 150. The particle diameter of the aerogel mud is 40-50 mm, and the pore diameter is 30-50 nm. The expandable inorganic silicate powder material is perlite raw ore powder; the perlite raw ore powder is unexpanded perlite raw ore powder of 80-120 meshes; the particle size of the diatomite is 400 meshes; the inorganic fibers are milled glass fibers, and the length of the milled glass fibers is 80-100 mu m. The particle size of the sericite powder is 800 meshes. Weighing the inner flame-retardant heat-preservation nano powder and the surface flame-retardant heat-preservation nano powder according to the proportion for later use.
1.1 coating method of flame-retardant heat-preservation nanometer thick paste paint on a solid wood board, comprising the following steps: (a) putting the inner-layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the seaweed powder solution, and continuously uniformly stirring to obtain a paste-shaped inner-layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the pasty inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of a solid wood board to be coated, and then drying; (c) and d, sanding the surface of the solid wood board obtained after drying treatment in the step b by using sand paper, and repeating the step b for one time: uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating/; (e) and (c) coating the pasty surface flame-retardant heat-preservation nano thick-paste coating obtained in the step (d) on the surface of the workpiece or the wall surface obtained after the drying treatment in the step (c), further performing drying treatment, and finishing the coating of the flame-retardant heat-preservation nano thick-paste coating on the solid wood board after the drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm. The temperature for drying treatment is 40 ℃; the wood is conveyed into a drying kiln for drying, the length of the drying kiln is 30m, and the drying time is 8 min. Here, in another embodiment of the present invention, the drying process is by natural air drying.
1.2 coating method of flame-retardant heat-insulating nano thick paste coating on cement wall surface, comprising the following steps: (a) putting the inner layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the sea sedge powder solution, and continuously uniformly stirring to obtain a paste-shaped inner layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the mud-paste-shaped inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of the cement wall surface, and then drying; the cement wall surface is a leveled cement wall surface; (c) and d, sanding the surface of the cement wall surface obtained after the drying treatment in the step b through sand paper for one time, and repeating the step b at least once: uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion, and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating/; (e) and (e) coating the pasty surface flame-retardant heat-preservation nano thick paste coating obtained by stirring in the step (d) on the surface of the wall surface obtained after drying treatment in the step (c), further performing drying treatment, and finishing coating the flame-retardant heat-preservation nano thick paste coating on the cement wall surface after drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm. The wall surface is dried by blowing hot air through an air blower, and the temperature of the hot air is 40-80 ℃. Here, in another embodiment of the present invention, the drying process is by natural air drying.
Example 2
A flame-retardant heat-preservation nano thick paste coating comprises an inner layer flame-retardant heat-preservation nano coating and a surface layer flame-retardant heat-preservation nano coating; the lining flame-retardant heat-insulation nano coating comprises lining flame-retardant heat-insulation nano powder, an adhesive and a regulator, wherein the lining flame-retardant heat-insulation nano powder comprises the following components in percentage by weight: 20% of aerogel mud, 60% of expandable inorganic silicate powder material, 15% of diatomite, 2% of inorganic fiber and 3% of organic fiber; the surface layer flame-retardant heat-preservation nano coating comprises surface layer flame-retardant heat-preservation nano powder, an adhesive and a regulator, wherein the surface layer flame-retardant heat-preservation nano powder comprises 60% of calcium powder, 25% of diatomite and 15% of sericite powder. The adhesive is an aqueous acrylic adhesive; the input proportion of the adhesive is that the volume ratio of the adhesive to the inner layer flame-retardant heat-preservation nano powder or the surface layer flame-retardant heat-preservation nano powder is 1: 5. the conditioner is seaweed powder emulsion which is obtained by mixing seaweed powder and water according to the volume ratio of 1: 150. The aerogel mud has a particle size of 40-50 mm and a pore diameter of 30-50 nm. The expandable inorganic silicate powder material is prepared from raw vermiculite powder; the particle size of the raw vermiculite powder is 300 meshes. The particle size of the diatomite powder is 400 meshes; the inorganic fiber is needle-shaped wollastonite powder, the particle size of the needle-shaped wollastonite powder is 200 meshes, and the organic fiber is polypropylene short fiber. The particle size of the sericite powder is 800 meshes. Weighing the inner flame-retardant heat-preservation nano powder and the surface flame-retardant heat-preservation nano powder according to the proportion for later use.
2.1 coating method of flame-retardant heat-preservation nanometer thick paste paint on solid wood board, comprising the following steps: (a) putting the inner-layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the seaweed powder solution, and continuously uniformly stirring to obtain a paste-shaped inner-layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the pasty inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of a solid wood board to be coated, and then drying; (c) and d, sanding the surface of the solid wood board obtained after drying treatment in the step b by using sand paper, and repeating the step b for one time: uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating/; (e) and (c) coating the pasty surface flame-retardant heat-preservation nano thick-paste coating obtained in the step (d) on the surface of the workpiece or the wall surface obtained after the drying treatment in the step (c), further performing drying treatment, and finishing the coating of the flame-retardant heat-preservation nano thick-paste coating on the solid wood board after the drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm. The temperature for drying treatment is 60 ℃; the wood is conveyed into a drying kiln for drying, the length of the drying kiln is 30m, and the drying time is 8 min. Here, in another embodiment of the present invention, the drying process is by natural air drying.
2.2 the method for coating the flame-retardant heat-preservation nano thick-paste coating on the cement wall surface comprises the following steps: (a) putting the inner layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the sea sedge powder solution, and continuously uniformly stirring to obtain a paste-shaped inner layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the mud-paste-shaped inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of the cement wall surface, and then drying; the cement wall surface is a leveled cement wall surface; (c) and d, sanding the surface of the cement wall surface obtained after the drying treatment in the step b through sand paper for one time, and repeating the step b at least once: uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion, and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating/; (e) and (e) coating the pasty surface flame-retardant heat-preservation nano thick paste coating obtained by stirring in the step (d) on the surface of the wall surface obtained after drying treatment in the step (c), further performing drying treatment, and finishing coating the flame-retardant heat-preservation nano thick paste coating on the cement wall surface after drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm. The wall surface is dried by blowing hot air through an air blower, and the temperature of the hot air is 40-80 ℃. Here, in another embodiment of the present invention, the drying process is by natural air drying.
Example 3
A flame-retardant heat-preservation nano thick paste coating comprises an inner layer flame-retardant heat-preservation nano coating and a surface layer flame-retardant heat-preservation nano coating; the lining flame-retardant heat-insulation nano coating comprises lining flame-retardant heat-insulation nano powder, an adhesive and a regulator, wherein the lining flame-retardant heat-insulation nano powder comprises the following components in percentage by weight: 12% of aerogel mud, 55% of expandable inorganic silicate powder material, 25% of diatomite, 5% of inorganic fiber and 3% of organic fiber; the surface layer flame-retardant heat-preservation nano coating comprises surface layer flame-retardant heat-preservation nano powder, an adhesive and a regulator, wherein the surface layer flame-retardant heat-preservation nano powder comprises 85% of calcium powder, 10% of diatomite and 5% of sericite powder. The adhesive is an aqueous acrylic adhesive; the input proportion of the adhesive is that the volume ratio of the adhesive to the inner layer flame-retardant heat-preservation nano powder or the surface layer flame-retardant heat-preservation nano powder is 1: 5. the conditioner is seaweed powder emulsion which is obtained by mixing seaweed powder and water according to the volume ratio of 1: 150. The aerogel mud has a particle size of 40-50 mm and a pore diameter of 30-50 nm. The expandable inorganic silicate powder material is raw vermiculite powder; the particle size of the raw vermiculite powder is 300 meshes. The particle size of the diatomite powder is 400 meshes; the inorganic fiber is needle-shaped wollastonite powder, the organic fiber is polypropylene short fiber, and the particle size of the needle-shaped wollastonite powder is 200 meshes. The particle size of the sericite powder is 800 meshes. Weighing the inner flame-retardant heat-preservation nano powder and the surface flame-retardant heat-preservation nano powder according to the proportion for later use.
3.1 coating method of flame-retardant heat-insulating nano thick paste paint on solid wood board, comprising the following steps: (a) putting the inner-layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the seaweed powder solution, and continuously uniformly stirring to obtain a paste-shaped inner-layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the pasty inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of a solid wood board to be coated, and then drying; (c) and d, sanding the surface of the solid wood board obtained after drying treatment in the step b by using sand paper, and repeating the step b for one time: uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating/; (e) and (c) coating the pasty surface flame-retardant heat-preservation nano thick-paste coating obtained in the step (d) on the surface of the workpiece or the wall surface obtained after the drying treatment in the step (c), further performing drying treatment, and finishing the coating of the flame-retardant heat-preservation nano thick-paste coating on the solid wood board after the drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm. The temperature for drying treatment is 50 ℃; the wood is conveyed into a drying kiln for drying, the length of the drying kiln is 30m, and the drying time is 8 min. Here, in another embodiment of the present invention, the drying process is by natural air drying.
3.2 the method for coating the flame-retardant heat-preservation nano thick paste coating on the cement wall surface comprises the following steps: (a) putting the inner layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the sea sedge powder solution, and continuously uniformly stirring to obtain a paste-shaped inner layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the mud-paste-shaped inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of the cement wall surface, and then drying; the cement wall surface is a leveled cement wall surface; (c) and d, sanding the surface of the cement wall surface obtained after the drying treatment in the step b through sand paper for one time, and repeating the step b at least once: uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion, and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating/; (e) and (e) coating the pasty surface flame-retardant heat-preservation nano thick paste coating obtained by stirring in the step (d) on the surface of the wall surface obtained after drying treatment in the step (c), further performing drying treatment, and finishing coating the flame-retardant heat-preservation nano thick paste coating on the cement wall surface after drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm. The wall surface is dried by blowing hot air through an air blower, and the temperature of the hot air is 40-80 ℃. Here, in another embodiment of the present invention, the drying process is by natural air drying.
Example 4
A flame-retardant heat-preservation nano thick paste coating comprises an inner layer flame-retardant heat-preservation nano coating and a surface layer flame-retardant heat-preservation nano coating; the lining flame-retardant heat-insulation nano coating comprises lining flame-retardant heat-insulation nano powder, an adhesive and a regulator, wherein the lining flame-retardant heat-insulation nano powder comprises the following components in percentage by weight: 15% of aerogel mud, 65% of expandable inorganic silicate powder material, 16% of diatomite, 2% of inorganic fiber and 2% of organic fiber; the surface layer flame-retardant heat-preservation nano coating comprises surface layer flame-retardant heat-preservation nano powder, an adhesive and a regulator, wherein the surface layer flame-retardant heat-preservation nano powder comprises 80% of calcium powder, 15% of diatomite and 5% of sericite powder. The adhesive is an aqueous acrylic adhesive; the input proportion of the adhesive is that the volume ratio of the adhesive to the inner layer flame-retardant heat-preservation nano powder or the surface layer flame-retardant heat-preservation nano powder is 1: 5. the conditioner is seaweed powder emulsion which is obtained by mixing seaweed powder and water according to the volume ratio of 1: 150. The aerogel mud has a particle size of 40-50 mm and a pore diameter of 30-50 nm. The expandable inorganic silicate powder material is prepared by mixing perlite raw ore powder and needle-shaped wollastonite powder according to the proportion of 10: 3; the perlite raw ore powder is unexpanded perlite raw ore powder of 80-120 meshes; the particle size of the diatomite is 400 meshes; the inorganic fiber is needle-shaped wollastonite powder, and the particle size of the needle-shaped wollastonite powder is 200 meshes; the organic fiber is polypropylene short fiber. The particle size of the sericite powder is 800 meshes. Weighing the inner flame-retardant heat-preservation nano powder and the surface flame-retardant heat-preservation nano powder according to the proportion for later use.
4.1 coating method of flame-retardant heat-preservation nanometer thick paste paint on solid wood board, comprising the following steps: (a) putting the inner-layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the seaweed powder solution, and continuously uniformly stirring to obtain a paste-shaped inner-layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the pasty inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of a solid wood board to be coated, and then drying; (c) and d, sanding the surface of the solid wood board obtained after drying treatment in the step b by using sand paper, and repeating the step b for one time: uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating/; (e) and (c) coating the pasty surface flame-retardant heat-preservation nano thick-paste coating obtained in the step (d) on the surface of the workpiece or the wall surface obtained after the drying treatment in the step (c), further performing drying treatment, and finishing the coating of the flame-retardant heat-preservation nano thick-paste coating on the solid wood board after the drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm. The temperature for drying treatment is 40 ℃; the wood is conveyed into a drying kiln for drying, the length of the drying kiln is 30m, and the drying time is 8 min. Here, in another embodiment of the present invention, the drying process is by natural air drying.
4.2 the method for coating the flame-retardant heat-preservation nano thick paste coating on the cement wall surface comprises the following steps: (a) putting the inner layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the sea sedge powder solution, and continuously uniformly stirring to obtain a paste-shaped inner layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the mud-paste-shaped inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of the cement wall surface, and then drying; the cement wall surface is a leveled cement wall surface; (c) and d, sanding the surface of the cement wall surface obtained after the drying treatment in the step b through sand paper for one time, and repeating the step b at least once: uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion, and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating/; (e) and (e) coating the pasty surface flame-retardant heat-preservation nano thick paste coating obtained by stirring in the step (d) on the surface of the wall surface obtained after drying treatment in the step (c), further performing drying treatment, and finishing coating the flame-retardant heat-preservation nano thick paste coating on the cement wall surface after drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm. The wall surface is dried by blowing hot air through an air blower, and the temperature of the hot air is 40-80 ℃. Here, in another embodiment of the present invention, the drying process is by natural air drying.
Comparative example 1
A thick paste coating comprises an inner layer coating and a surface layer coating; the inner layer coating comprises inner layer powder, an adhesive and a regulator, wherein the inner layer powder comprises the following components in percentage by weight: 17% of aerogel mud, 60% of perlite powder expanded at 900-1300 ℃, 10% of diatomite and 3% of inorganic fiber; the surface layer coating comprises surface layer flame-retardant heat-preservation nano powder, an adhesive and a regulator, wherein the surface layer powder comprises 70% of calcium powder, 20% of diatomite and 10% of sericite powder. The adhesive is water-based acrylic adhesive; the input proportion of the adhesive is that the volume ratio of the adhesive to the inner layer powder or the surface layer powder is 1: 5. the conditioner is seaweed powder emulsion, and the seaweed powder emulsion is seaweed powder emulsion obtained by mixing seaweed powder and water according to the volume ratio of 1: 150. The particle size of the aerogel mud is 40-50 mm, and the aperture is 30-50 nm. The particle size of the diatomite is 400 meshes; the inorganic fibers are milled glass fibers, and the length of the milled glass fibers is 80-100 mu m. The particle size of the sericite powder is 800 meshes. And weighing the inner layer powder and the surface layer powder according to the proportion for later use.
The coating method of the thick paste coating on the solid wood board comprises the following steps: (a) adding the inner layer powder and the adhesive into a stirrer according to a certain proportion, uniformly stirring into a paste shape, then adding the seaweed powder solution, and continuously uniformly stirring to obtain a paste-shaped inner layer thick slurry coating I; (b) uniformly coating the inner thick slurry coating I in a pasty state obtained by stirring in the step a on the surface of a solid wood board to be coated, and then drying; (c) and d, sanding the surface of the solid wood board obtained after drying treatment in the step b by using sand paper, and repeating the step b for one time: uniformly coating a pasty inner thick paste coating I, and then drying; (d) putting the surface layer powder, the adhesive and the seaweed powder emulsion into a stirrer according to the proportion and uniformly stirring to form a pasty surface layer thick paste coating/; (e) and d, coating the pasty surface thick slurry coating obtained in the step d on the surface of the workpiece or the wall surface obtained after the drying treatment in the step c, further performing drying treatment, and finishing the coating of the thick slurry coating on the solid wood board after the drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer thick paste coating is not more than 0.1 mm. The temperature for drying treatment is 40 ℃; the wood is conveyed into a drying kiln for drying, the length of the drying kiln is 30m, and the drying time is 8 min. Here, in another comparative example of the present invention, the drying treatment was performed by natural air drying.
The 5.2 thick paste coating method on the cement wall surface comprises the following steps: (a) putting the inner layer powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the sea sedge powder solution, and continuously uniformly stirring to obtain a paste-shaped inner layer thick paste coating I; (b) uniformly coating the pasty lining thick-paste coating I obtained by stirring in the step a on the surface of the cement wall surface, and then drying; the cement wall surface is a leveled cement wall surface; (c) and d, sanding the surface of the cement wall surface obtained after the drying treatment in the step b by using sand paper, and repeating the step b at least once: uniformly coating a mud-like inner thick slurry coating I, and then drying; (d) putting the surface layer powder, the adhesive and the seaweed powder emulsion into a stirrer according to the proportion and uniformly stirring to form a pasty surface layer thick paste coating/; (e) and d, coating the pasty surface thick slurry coating obtained in the step d on the surface of the wall surface obtained after the drying treatment in the step c, further performing drying treatment, and finishing the coating of the thick slurry coating on the cement wall surface after the drying treatment. Wherein the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer thick paste coating is not more than 0.1 mm. The wall surface is dried by blowing hot air through an air blower, and the temperature of the hot air is 40-80 ℃. Here, in another comparative example of the present invention, the drying treatment was by natural air drying.
The components and the proportions of the inner layer flame-retardant heat-preservation nano powder in the above examples 1 to 4 and comparative example 1 are shown in table 1, and the components and the proportions of the surface layer flame-retardant heat-preservation nano powder in the above examples 1 to 4 and comparative example 1 are shown in table 2.
Table 1 shows the components and the mixture ratio of the inner flame-retardant and heat-insulating nano powder in the examples 1 to 4 and the comparative example 1
Table 2 shows the components and the mixture ratio of the surface layer flame-retardant and heat-insulating nano powder in examples 1-4 and comparative example 1
| Formulation (in percentage) | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 |
| Calcium powder (%) | 70 | 60 | 85 | 80 | 70 |
| Diatomaceous earth (%) | 20 | 25 | 10 | 15 | 20 |
| Sericite powder (%) | 10 | 15 | 5 | 5 | 10 |
The flame-retardant and heat-insulation nano mastic coating of the embodiments 1-4 and the comparative example 1 of the invention has a flame-retardant performance testing method, which comprises the following steps: (1) preparing a sample: cutting the flame-retardant heat-preservation nano thick paste coating into 125 × 13 × 50mm combustion sample wafers; (2) sample measurement: vertically placing a test piece, adjusting the height of flame to be 2cm, burning for 15min for the first time till extinguishing, recording the required time and other phenomena, burning for 15min for the second time till extinguishing, recording the required time and other phenomena, and observing whether dripping occurs or not and the plate burning phenomenon occurs.
The flame-retardant heat-preservation nano thick-paste coating of the embodiments 1-4 and the comparative example 1 is used for testing the coating performance, wherein a complete coating is obtained by cutting the coating on the surface of a solid wood plate, and the heat conductivity and the porosity are tested; cutting to obtain a complete coating, testing the thermal conductivity and the porosity, then placing the cut coating in a roasting furnace for roasting, and preheating and roasting at 500 ℃ for 10min during roasting; then, the temperature is raised to 1100 ℃ for roasting for 15s, and then the thermal conductivity and the porosity of the material are tested.
And (3) testing results: the performance test results of the flame-retardant heat-preservation nano thick paste coating in the embodiments 1-4 of the invention are shown in Table 3. The coating thermal conductivity of the flame-retardant heat-preservation nano thick slurry coating is about 0.1W/(m.K); the coating porosity of the flame-retardant heat-preservation nano thick paste coating is about 60 percent. The flame retardant property is excellent, and the flame retardant does not completely burn under 30min flame. Whereas the coated solid wood in comparative example 1 started burning in less than 20 min. Compared with the prior art, the flame retardant performance of the flame-retardant heat-preservation nano thick paste coating disclosed by the embodiment 1-4 is obviously obtained; in addition, in comparative example 1, because the expanded perlite powder is adopted, the coated coating is very easy to fall off and peel once being dried or in the drying process, and the coating effect is poor.
Table 3 Performance test results of the flame-retardant and heat-insulating nano thick paste coating of examples 1 to 4 and comparative example 1 of the invention
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (10)
1. The flame-retardant heat-insulating nano thick paste coating is characterized by comprising the following components in parts by weight: comprises an inner layer flame-retardant heat-preservation nano coating and a surface layer flame-retardant heat-preservation nano coating; the lining flame-retardant heat-insulation nano coating comprises lining flame-retardant heat-insulation nano powder, an adhesive and a regulator, wherein the lining flame-retardant heat-insulation nano powder comprises the following components in percentage by weight: 5-30% of aerogel mud, 50-70% of expandable inorganic silicate powder material, 6-30% of diatomite and 3-8% of inorganic fiber or/and organic fiber; the surface layer flame-retardant heat-preservation nano coating comprises surface layer flame-retardant heat-preservation nano powder, an adhesive and a regulator, wherein the surface layer flame-retardant heat-preservation nano powder comprises 60-85% of calcium powder, 10-30% of diatomite and 5-15% of sericite powder.
2. The flame-retardant heat-insulating nano mastic coating according to claim 1, characterized in that: the adhesive is an aqueous acrylic adhesive; the input proportion of the adhesive is that the volume ratio of the adhesive to the inner layer flame-retardant heat-preservation nano powder or the surface layer flame-retardant heat-preservation nano powder is 1: 5.
3. the flame-retardant heat-insulating nano mastic coating according to claim 1, characterized in that: the conditioner is seaweed powder emulsion which is obtained by mixing seaweed powder and water according to the volume ratio of 1: 150.
4. The flame-retardant heat-insulating nano mastic coating according to claim 1, characterized in that: the aerogel particle size of aerogel mud is 40~50mm, and the aperture is 30~50 nm.
5. The flame-retardant heat-insulating nano mastic coating according to claim 1, characterized in that: the expandable inorganic silicate powder material is an inorganic silicate powder material which is preheated or heated at high temperature and expands in volume; the expandable inorganic silicate powder material is perlite raw ore powder or/and raw vermiculite powder; the perlite raw ore powder is unexpanded perlite raw ore powder of 80-120 meshes; the particle size of the raw vermiculite powder is 300 meshes.
6. The flame-retardant heat-insulating nano mastic coating according to claim 1, characterized in that: the particle size of the diatomite is 400 meshes; the inorganic fibers are milled glass fibers or needle-shaped wollastonite, and the length of the milled glass fibers is 80-100 mu m; the particle size of the needle-shaped wollastonite is 200 meshes; the organic fiber is polypropylene short fiber.
7. The flame-retardant heat-insulating nano mastic coating according to claim 1, characterized in that: the particle size of the sericite powder is 800 meshes.
8. The coating method of the flame-retardant heat-preservation nano mastic coating as claimed in any one of claims 1 to 7, characterized in that: the method comprises the following steps: (a) putting the inner layer flame-retardant heat-preservation nano powder and the adhesive into a stirrer according to a proportion, uniformly stirring into a paste shape, then adding the sea sedge powder solution, and continuously uniformly stirring to obtain a paste-shaped inner layer flame-retardant heat-preservation nano thick paste coating I; (b) uniformly coating the pasty inner-layer flame-retardant heat-preservation nano thick paste coating I obtained by stirring in the step a on the surface of a workpiece or a wall surface to be coated, and then drying; (c) and (c) repeating the step (b) at least once on the surface of the workpiece or the wall surface obtained after the drying treatment in the step (b): uniformly coating a pasty inner-layer flame-retardant heat-preservation nano thick paste coating I, and then drying; (d) putting the surface layer flame-retardant heat-preservation nano powder, the adhesive and the seaweed powder emulsion into a stirrer according to a proportion and uniformly stirring to form a pasty surface layer flame-retardant heat-preservation nano thick paste coating ǁ; (e) and d, coating the pasty surface flame-retardant heat-preservation nano thick paste coating ǁ obtained in the step d on the surface of the workpiece or the wall surface obtained after the drying treatment in the step c, further performing drying treatment, and finishing the coating of the flame-retardant heat-preservation nano thick paste coating after the drying treatment.
9. The coating method of the flame-retardant heat-preservation nano mastic coating as claimed in claim 8, characterized in that: the stirring time in the step a and the step d is not less than 30 min; the coating thickness of the flame-retardant heat-preservation nano thick paste coating is not more than 0.8 mm; the coating thickness of the surface layer flame-retardant heat-preservation nano thick paste coating is not more than 0.1 mm.
10. The coating method of the flame-retardant heat-preservation nano mastic coating as claimed in claim 8, characterized in that: the drying treatment is natural air drying or drying, and the drying temperature is 40-80 ℃.
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| CN114591481B (en) * | 2022-03-22 | 2023-08-08 | 华北科技学院(中国煤矿安全技术培训中心) | Expandable graphite flame-retardant polyurethane foam and preparation method thereof |
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